text: FS 49 C2 is believed to cause less damage to the environment. Its main component is the most widely used replacement gas for refrigeration systems, characterized by zero Ozone Depletion Potential (ODP) factor. FS 49 C2 is suitable to replace Halon 1301 as a "drop in" upgrade of existing Halon systems.
  Filling a room 12% by FS 49 C2 is sufficient to suppress a flame-based fire.
  Even though FS 49 C2 gas does not leave toxic gases behind, a self-contained breathing apparatus is recommended when in a fire site because in the process of extinguishing the fire, FS 49 C2 may release potentially harmful gases.